Youmight not know the name Storm Thorgerson, but there's a fair chance that if you buy records and CDs you already own some of his artwork.

With a career stretching back nearly forty years, Storm's distinctive artwork has graced the records of such chart topping acts as Black Sabbath, Led Zeppelin, Peter Gabriel, 10cc, Ian Dury, The Cranberries and more recently, Mars Volta and Muse.

But it's his work for Pink Floyd for which he is best known, designing such memorable images as a flying pig (Animals), a flaming businessman (Wish You Were Here), divided light (Dark Side Of The Moon) and a beach of full of beds (A Momentary Lapse of Reason).

These, and many other images, are currently on show at St Paul's Gallery, Birmingham for what is believed to be the largest exhibition of album artwork ever.

"What we show are fine art prints based on album sleeves, single bags and posters," explains Storm of the exhibition. "So they're recognisable yet completely different.

"They're kind of remixed and represented. This is a fine art mix. I go back to original artwork and re-prepare it, re-crop it to a better size as it may have sometimes been a small CD size. These prints are much bigger.

"These are really attempts to represent what were often album covers in the best possible light."

Among the familiar images is a brand new print based on the lost artwork for Black Sabbath's 1976 opus, Technical Ecstasy.

"The artwork had ended up in a museum vault in Hull," exclaims Storm, who'd hunted high and low for many years in an attempt to trace the original artwork.

"I don't know how it got there, but we managed to retrieve it and make a print as we thought it'd be very suitable for Birmingham, being their home town. I've always been fond of that image."

Although Technical Ecstasy is a graphic image, much of Storm's work is photographic, often involving huge sculptures and complex choreographed events.

"It's hard to find a proper word for what we do," says the artist. "But we call then 'extallations', like installations but outside. They're events that are artistic.

"We do a lot of sculpture like Pink Floyd's Division Bell where we put two sculptures the size of a house in a field in Cambridgeshire. They looked incredible! They weighed a ton - but they looked great, so much better than if you'd drawn them or done them with a computer."

With the advent of small CDs, Storm sees his job as drawing in the buyer and intriguing the fan.

Spending weeks listening to an album, he'll find elements, themes and ideas which he'll attempt to visualise in the hope that the viewer with look again and again as references to the music reveal themselves in the image.

"A mass produced CD can never compete with a Van Gogh or a billboard, so I have to bewitch you to get you to look again."